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Conoco Viking Vulcan Decommissioning

19th July 2017
  • Projects

With assets in the North Sea reaching the end of their effective life cycle, operators are taking the decision to decommission the assets.in their entirety, with this comes the realisation that there

is a lot of pre works that can and need be completed prior to the HLV arriving on location to remove the asset from the sea bed.

It was decided by the client to prepare the assets to a state of readiness where they could be left in light house mode until such time that an HLV vessel could be sourced to remove the remaining topsides and jackets for recycling or disposal.

Derrick Services UK Limited were awarded 2 work packages on the Conoco Viking Offshore Gas Production assets one by Conoco Phillips the Operator and one by Royal Boskalis Westminster the Heavy Lift contractor.

This approach created a one team work ethic which DSL believe is critical to implement a safe cost effective completion to any Decommissioning Project.

  • Client: Conoco Phillips
  • Contract completion: July 2017
  • Value: £2,300,000

DSL completed in excess of 90,000 man hours in total without Incident on this project, over 7000 of these hours were actual On-rope hours also without incident

Project description

The work scope involved numerous work tasks in what were challenging conditions  spanning;

  • Onshore Project Management
  • Engineering & Fabrication
  • Redundant equipment removal
  • Installation of lifting points
  • Caisson, Riser & J tube Removal
  • Sling path Clearing & Air Gapping
  • Leg Cutting Platform Installation
  • Comms Tower Removal
  • Offshore Construction Services
  • Rope Access Personnel (Welders, Platers, Pipe-fitters, Riggers, E&I)

Services provided

  • Project Planning
  • Engineering and Fabrication
  • Rope access Personnel and Equipment
  • Offshore Construction Services
  • Redundant Equipment Removal
  • Communication Tower Removal

Benefits to the client

  • Multi-disciplined personnel on the asset creating efficiencies
  • Collaborative  approach between Client, Construction Contractor and HLV contractor
  • Open discussions leading to innovative  ideas resulting in cost and time efficiencies
  • Open sharing of Information between all parties

 

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